A new Pew Report, high points here, notes that 18% of social networking site users have blocked, unfriended, or hidden someone because of their political comments. Liberals are more likely to do this than conservatives, 28-16. Moderates less. Fascinating report.
I think that would be me, were I a user, having much opportunity to feel hurt because some friend tossed me over. But it wouldn't be because of anything I brought to the conversation - it would be my response to what someone else brought. I'm not good at staying away from that stuff. I seem to believe strongly that wrongness needs reply.
It doesn't, not always. Perhaps almost never.